Coating mechanism



Patented May i3, 1924.

acarreo stares PATENT ortica.

ZENO OSTENBERG, OF SN JOSE, CALIFORNIA, ASSIGNOR T0 THE CALTEX COMPANY,`OF SAN JOSE, CALIFORNIA, A. CORPORATION OF CALIFORNIA.

COATING MECHANISM.

Application led August 31, 1921.

To all whom t may concer/n.'

- Be it known that I, ZENO OSTENBERG, a

citizen of the United States, and resident of San Jose, in the county ofSanta Clara and State of California, have invented certain new anduseful Improvements in Coating Mechanism, of which the following is aspecification.

This invention relates particularly to the so-called knife used inapplying a coating material to a moving surface as in the manufacture ofartificial leather and kindred products.

It is the objectl of my invention to provide a knife of the characterset forth in my copending application for patent, Serial No. 440,101,filed Jan. 26, 1921, in which the knife blade is adjustable relative tothe body of the knife, thereby permitting the quick and accurate gaugingof the coating material, and securing other objects and advantageshereinafter fully set forth.

In the drawing,-

Figure 1 is a vertical transverse section through a coating knifeembodying my invention.

Figure 2 is a section on line 2 2 of Figj ure 1.

Figure 3 shows another embodiment of my invention. Referring moreparticularly to the drawings, 1 indicates the bod portion of a hollowknife supplied wit coating material under pressure through inlet 2.Knife 1 has one flat side 3 provided with an opening 4 between it andthe lower edge 5 of said knife, the edge 5 terminating a distance shortof averticalplane in which.. the outer surface of side 3 lies to form anarrow slot or passage 6. The length of this slot 6 is determined byadjusting blocks as ,7 slidably .mounted therein. l

Securely mounted on the outer surface of side 3 are vertically arrangeddovetailed guides 8. At 9 is a blade provided with grooves adapted toengage guides 8 and thereb vertically adjustable on knife 1, an suitab emeans, as rod 10 being used to e feet said adjustment. The lenglth ofguides 8 is such that the blade 9 is eld in close contact with blocks 7at all times.

The knife 1 is mounted on table 11 sub- Serial No. 497,308.

stantially as shown, the table having a recess 12 formed therein belowsaid knife, and the material to be coated as 13 moving over said tableand under said knife as shown.

In operation the material 13 is moved under the knife in the directionindicated by the arrow at a substantially uniform rate of speed. Sincethe coating material is forced through slot 6 under a given pressure agiven quantity of said material is moving therethrough and beingdeposited on the material 13. -If the blade 9 is raised a distance asindicated in dotted lines at 14 then the coating is deposited in a thicklayer without materially penetrating the material 13. If the blade 9 islowered| the j same quantity is deposited onmaterial 13 `but it isforced into material' 13 thereby increasing its adhesion thereto., Anadjustable is here shown as arranged within the knife instead of formina side portion thereof/ It is to vbe un erstood, of course, that while Ihave herein shown and described particular embodiments of my inventionthat changes in form and construction may be made within the scopeof theappended claims.`

I claim 1. A coating knife comprisinlga hollow body portion having anelongated slot formed therein, movable blocks inserted in said `slot fordefining the length thereof, and a vertically movable blade adjustablymounted on said body portionand forming one side of` said slot.

2. A coating knife comprisin a hollow body portion having an inlet tcreto and a fiat side extending from the upper portion thereofdownwardly to a point spaced a distance from the lower edge thereof,said lower edge being spaced back a distance from the plane in whichsaid flat side lies,

and a blade adjustably mounted on said fiat side and supported againstdisplacement thereby whereby to' form an elongated slot in conjunctionwith said lower edge.

3. A coatin knife compris-in a hollow` body portion aving an inlet tereto and a flat side extending from the upper portion thereofdownwardly to a point spaced a dis- 5 tance from the lower ed e thereof,said lower edge being spaced ack a distance from a plane in which saidlat side lies, and

a blade adjustably mounted on said Hat side `and supported againstdisplacement thereby whereby to form an elongated slot in conjunctionwith said lower edge,`and movable blocks inserted between said blade andsaid edge to define the len h of said slot.

' ZEN() O TENBERG.

